JPH0362522B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a winding device for a veneer veneer (hereinafter referred to as a veneer) cut by a veneer lace.

Prior Art Conventionally, in a winding device that winds up a band-shaped veneer cut by veneer lace, an operator manually wraps the front edge of the veneer onto the outer circumferential surface of a take-up reel. The veneer is wound up as the take-up reel rotates, and the veneer itself has many cracks in the fiber direction. It had the property of being easily broken.

In the case of the above device, if the veneer breaks during winding, the operator must stop the rotation of the veneer lace and the take-up reel, and wrap the following veneer on the outer circumferential surface of the take-up reel again. However, since it is necessary to perform a winding operation, the winding speed has to be slowed down and workability has been reduced.

In addition, Japanese Patent Publication No. 46-42519 discloses that a veneer is transported to a take-up reel by a guide belt disposed so as to be able to come into contact with and release freely from at least 1/2 circumference of a take-up reel or bobbin via a conveyor. Alternatively, a winding device is shown that automatically winds up the introduced veneer by guiding it to the outer periphery of the winding ball. However, in the take-up device disclosed in the above-mentioned publication, the fulcrum of the L-shaped arm that releases the contact with the guide belt is set at a position significantly away from the axis of the take-up reel. For this reason,
As the diameter of the winding ball increases, the opening (non-contact area) of the guide belt expands, and as a result, in the case of a veneer with cracks, the crack extends from the opening in the centrifugal direction of the take-up reel. It's getting easier to jump out. For this reason, the veneer could not be smoothly and reliably rolled up. In addition, in order to discharge veneers that cannot be rolled up (top-peeled veneers) due to the above-mentioned configuration, a guide belt is stretched behind the take-up reel, which may be an obstacle to discharging the top-peeled veneers. It's summery. For this reason, it is necessary to separately provide a conveyor for discharging the top-peeled veneer at a position shifted upward or downward from the conveying surface of the veneer relative to the take-up reel, making the entire apparatus complicated and high-rise. Furthermore, the above-described winding device has a guide belt that is bent in a complicated manner and is positioned on the outer peripheral surface of the winding reel. For this reason, it is difficult to run the guide belt to follow normal high-speed winding work that reaches approximately 200 m/min, and there is a risk that the guide belt may come off, making it difficult to perform winding work at high speed and reliably. Nakatsuta.

Purpose The purpose of the present invention is to solve the above-mentioned conventional drawbacks,
The front edge of the veneer is automatically wound around the take-up reel, and when winding a veneer with cracks in the fiber direction, it prevents the winding operation from being interrupted due to breakage of the veneer. In addition, narrow-width veneers that cannot be rolled up by the take-up reel or top-peeled veneers can be selectively passed through the winding device and transported to the subsequent cutting device, reducing the winding process. An object of the present invention is to provide a veneer winding device that can save labor and increase speed.

Example The present invention will be described below with reference to Examples.

Fig. 1 is a schematic side view showing a veneer winding device according to the present invention, Fig. 2 is a schematic plan view of Fig. 1, and Fig. 3 is a schematic front view of Fig. 1. The conveyor 1 is mounted so as to be able to swing vertically around its starting end shaft 1a, and its leading end shaft 1a.
A Tatsuchiroll 3 is attached to b via a holder 2, and the Tatsuchiroll 3 is attached to the tip shaft 1b so that its rotational speed is slightly higher than that of the tip shaft 1b.
A chain 4 is stretched between the roller shaft 3a and the roller shaft 3a. Further, a weight 5 is attached to the holder 2 via a chain 6 for swinging and urging the carry-in conveyor 1 upward. This carry-in conveyor 1 conveys the veneer S cut by the veneer lace to the winding device 7.

The take-up device 7 includes a take-up reel that comes into contact with the upper outer periphery of the Tatsu-Roll 3 and is driven as the Tatsu-Roll 3 rotates, and a take-up reel on the main body frame 9 that is disposed on both ends of the axis of the take-up reel 8. 8
The swinging arms 11a, 11b are rotated by a rotating member 10 such as an electric motor attached to a locking portion 9a for fixing the swinging arms 11a, 11b in parallel with the axis of the take-up reel 8. It is swung by a support bar 12 fixed to the support bar 12 and an operating member 14 such as a rotary actuator attached to a holder 13 fixed inward from both ends of the support bar 12, and a sprocket 15 is attached to the upper end side in FIG. , and a pressing member 18 consisting of a pressing arm 17 to which a tip sprocket 16a is attached, which is located below the outer periphery on the loading side of the take-up reel 8;
A holding bar 21 is fixed between sliding bodies 20 that slide up and down on sliding bars 19 arranged on both ends of the axis.
At the top, the pressure arm 22 is fixed at a position substantially opposite to the tip sprocket 16a, and has a tip roller 16b attached to its tip that presses the lower outer periphery of the take-up reel 8, and urges the slider 20 upward. a pressure member 24 consisting of a weight 23 for
A chain whose one end is attached to the tip roller 16b and which surrounds substantially the entire outer peripheral surface of the take-up reel 8 between the tip sprocket 16a and is meshed with the sprocket 15 and stretched toward the unloading side. A large number of pressure rollers 26 are attached to the side surface of the winding reel 25, and the winding guide member 27 winds up the veneer S onto the winding reel 8.

In the figure, 28 is a weight as a tension member for applying tension to the chain 25, 29 is on the lower outer periphery of the take-up reel 8 on the carry-in side,
This is an opening for introducing the carried veneer S onto the outer peripheral surface of the take-up reel 8.

The carry-out conveyor 30 is located at the lower limit of movement of the carry-in conveyor 1, and carries out top-peeled veneers, etc., which have been cut by veneer laces until the raw wood becomes a perfect circle, to a subsequent cutting device (not shown). be.

Next, the operation of this embodiment will be explained with reference to FIGS. 4 and 5.

After fixing the take-up reel 8 to the locking part 9a, the rotating member 10 is operated to rotate the swinging arms 11a, 11b.
is positioned on the take-in side of the take-up reel 8, and then the actuating member 14 is actuated to urge the pressing arm 17 to rotate toward the take-up reel 8 side.

Due to this operation, the tip sprocket 16a is located on the outer periphery of the take-up reel 8 at a position slightly above the conveyance surface of the carry-in conveyor 1 on the carry-in side.

On the other hand, the pressure arm disposed on the take-out side of the take-up reel 8 is urged upward by the weight 23, and presses the tip roller 16b below the take-up reel 8 to press the outer periphery of the take-up reel 8 corresponding to the touch roll 3. Press in the centripetal direction.

Further, the weight 28 applies tension to the take-up guide member 27, and the take-up guide member 27 is wound around the entire outer periphery of the take-up reel 8 except for the opening. When the carry-in conveyor 1 is driven, the take-up reel 8 is driven as the touch roll 3 rotates.

In this state, the front edge of the veneer S carried in by the insertion conveyor 1 enters between the tip roller 16b and the take-up reel 8 through the opening 29 as the veneer S is conveyed, and after being clamped, The veneer S is wound onto the take-up reel 8 while the winding direction is regulated by the take-up guide member 27 as the take-up reel 8 rotates.

At the time of winding, the veneer S is uniformly pressed almost entirely on the outer periphery of the take-up reel 8 by the pressure roller of the winding guide member 27, so that cracks may occur in some parts of the veneer S. However, the veneer S can be wound up without breaking.

The veneer wound on the take-up reel 8 (hereinafter referred to as the winding reel 3)
In order to keep the tip of the pressing arm 17 constant relative to the lower outer periphery of the loading side of the
a and 11b are rotated counterclockwise by the rotating member 10 in accordance with the amount of increase in the diameter of the wound ball 31.

Therefore, the width of the opening 29 is kept substantially constant.

Further, as the diameter of the rolled balls 31 increases, the conveyor 1 is rotated downward around the starting end shaft 1a against the bias of the weight 5, and the pressurizing arm 2
2 is slid downward against the biasing force of the weight 23, so the tip roller 16b is always connected to the take-up reel 8.
Press the lower outer periphery of with a constant force.

Next, when the winding ball 31 reaches a predetermined diameter and the winding device is terminated, the swinging arms 11a and 11b are moved clockwise by the operation of the rotating member 10, and the operating member 14
By the operation of , the pressing arm 17 is rotated clockwise and positioned as shown in FIG. The reel 8 is unlocked, the rolled ball 31 is moved upward, and the rolled ball 31 is removed from the main body frame 9.

When conveying the top-peeled veneer Sa, the carry-in conveyor 1 is swung downward about the starting end shaft 1a, and the conveyance surfaces of the carry-in conveyor 1 and the carry-out conveyor 30 are substantially the same. At that time, the tip roll 16b is always connected to the take-up reel 8 regardless of the swinging of the carry-in conveyor 1.
Since the lower part of the outer periphery of the conveyor 1 is pressed, the conveyor 1 is located above the conveyance surface of the carry-in conveyor 1. Therefore, top peeled veneer
Does not impede transportation of Sa.

As is clear from the above, the winding device according to the present invention is capable of automatically winding up a veneer onto a winding reel by the surrounding winding guidance of the winding guide member, and also includes a swing arm and a pressing member. In addition to the basic function of easily replacing the take-up reel by releasing the winding of the take-up guide member as the take-up reel rotates, the By rotating the arm to maintain a fixed position at which the pressing member presses the take-up reel, the width of the opening can be made constant regardless of changes in the diameter of the rolled ball. This achieves the ability to extremely stably wind up even a veneer with cracks. In addition, the pressure member provided below the take-up reel is biased so that winding is impossible with the starting end of the winding guide member being in close contact with the bobbin regardless of the downward swinging of the carry-in conveyor. This function allows the veneer to pass smoothly from the incoming conveyor to the outgoing conveyor. These functions described above achieve automation of the winding operation, labor saving, and simplification of the device.

Furthermore, since the winding guide member is non-traveling, even if the winding speed is increased, there is no risk of the winding guide member derailing unlike the conventional device described in the prior art section, and the winding operation can be carried out easily. It has functions that can be performed efficiently.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing a veneer winding device according to the present invention, FIG. 2 is a schematic plan view of FIG. 1, FIG. 3 is a schematic front view of FIG. 1, and FIG. 5 is an explanatory view showing the operating state, and FIG. 5 is an explanatory view showing the take-up reel removal state. 1... Carrying-in conveyor, 3... Tatsuchi Roll, 7
... Winding device, 8 ... Winding reel, 10 ... Rotating member, 11a, 11b ... Swinging arm, 14 ...
Actuation member, 17... Pressing arm, 18... Pressing member, 26... Pressing roller, 22... Pressing arm,
24... Pressure member, 27... Winding guide member, 28
... Weight, 29 ... Opening, 30 ... Carrying out conveyor.

Claims (1)

[Scope of Claims] 1. A take-up reel that is disposed above the take-up position of a carry-in conveyor that conveys a veneer veneer cut by a veneer lace, and has an axis in a direction perpendicular to the conveyance direction of the carry-in conveyor; a swinging arm disposed on the axial end side of the take-up reel; a rotating member for rotating the swing arm; and a swing member attached to the swing arm and arranged on the carry-in side of the take-up reel to rotate the carry-in conveyor. A pressing member is located slightly above the surface of the take-up reel and urges the outer periphery of the take-up reel in a centripetal direction; a pressure member that biases the reel in a centripetal direction; and a take-up guide member, which is stretched to the take-out side through the winding reel and has a tension member attached to the other end, and the wind-up guide member is stretched between the press member and the tip of each of the press members, and The veneer veneer is automatically wound onto the outer periphery of the take-up reel through an opening formed at the bottom, and the veneer veneer is wound up by being guided by a take-up guide member as the take-up reel rotates. Winding device for veneer veneer.